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Eleventy Integration

The official plugin for integrating JamComments into your Eleventy site.


In order to use this plugin, you’ll need to do the following:


Run npm install @jam-comments/eleventy.


In your .eleventy.js file, require the plugin and initialize it with your site’s domain and API key.

const jamComments = require('@jam-comments/eleventy');
module.exports = function(eleventyConfig) {
eleventyConfig.addPlugin(jamComments, {
domain: process.env.JAM_COMMENTS_DOMAIN,
apiKey: process.env.JAM_COMMENTS_API_KEY,
tz: "America/Chicago" // Optional.

Environment Configuration

In non-production mode, this plugin will render a list of dummy comments on your pages, making it easier to adjust styles before deploying to production. Additionally, any new comments will be silently submitted.

In order to remove these dummy comments and allow submissions to go through, either the NODE_ENV or JAM_COMMENTS_ENVIRONMENT environment variables must be set to production.

Displaying Comments

Embed the jamcomments Nunjucks shortcode in the template that renders individual posts or pages. Note that explicitly passing the path.url is optional. If it’s not provided, it’ll use the current path as indicated by Eleventy on build.

<h1>My Page Title</h1>
<p>Here's some page content.</p>
<!-- Form and comments will render here! -->
{% jamcomments path.url %}

Automated Schema Generation

Out of the box, JamComments will automatically generate structured data (JSON-LD) for your pages, as long as a BlogPosting or Article entity already exists in the document. This configuration-free approach generates the data client-side with JavaScript — an approach well-supported by Google.

However, if you’d like that data to be server-rendered for more robustness, pass a JSON string or JavaScript object in your shortcode:

{% jamcomments path.url, {
"@context": "",
"@type": "BlogPosting",
"headline": "My Blog Post"
} %}

When schema is passed like this, the plugin will render the full object with comments into the HTML. Just remember to not render it yourself if you use this feature, as to avoid duplicate records appearing on the page.

Supported Rendering Engines

  • *.njk
  • *.liquid


The source for this plugin is open to contributions. If you have a bug fix or idea for improvement, leave a pull request or issue in the GitHub repository.